Help: Add very basic help command

commands/help.js

@@ -0,0 +1,62 @@
+const { SlashCommandBuilder } = require("discord.js");
+const fs = require("fs");
+
+module.exports = {
+    data: new SlashCommandBuilder()
+            .setName("help")
+            .setDescription("List all commands or info about a specific command")
+            .addStringOption(option => 
+                option.setName("command")
+                .setDescription("The command to get info on")
+                .setRequired(false)
+            ),
+    permissionLevel: 0,
+    async execute(interaction) {
+        await interaction.deferReply();
+        
+        //reply with a list of all commands
+        if (!interaction.options.getString("command")) {
+            let commands = [];
+            const commandFiles = fs.readdirSync('./commands').filter(file => file.endsWith('.js'));
+            for (const file of commandFiles) {
+                const command = require(`./${file}`);
+                if (!command.permissionLevel || command.permissionLevel < 2) {
+                    commands.push(command.data.name);
+                }
+            }
+            interaction.editReply({ content: `Here's a list of all my commands: \n \`${commands.join('`, `')}\`` });
+            return;
+        }
+        //reply with info about a specific command
+        else {
+            const commandName = interaction.options.getString("command");
+            const command = interaction.client.commands.get(commandName);
+            if (!command) {
+                await interaction.editReply(`Command /${commandName} does not exist`);
+            }
+            else {
+                let reply = `Name: /${command.data.name}\n` +
+                `Description: ${command.data.description}\n`+
+                `Permission Level: ${command.permissionLevel}\n`;
+                if (command.help) {
+                    reply += `${command.help}\n`;
+                }
+                if (command.data.options) {
+                    reply += `Options:\n`;
+                    for (const option of command.data.options) {
+                        reply += `\t${option.name}: ${option.description}\n`;
+
+                        if (option.type === "SUB_COMMAND") {
+                            reply += `\t\tOptions:\n`;
+                            for (const subOption of option.options) {
+                                reply += `\t\t\t${subOption.name}: ${subOption.description}\n`;
+                            }
+                        }
+                    }
+                }
+                
+                await interaction.editReply(reply);
+            }
+        }
+    }
+}